Founded in 2003, Radio Activity is a dynamic and flexible engineering company, specialising in the design and manufacture of radio system infrastructure components and applications. Thanks to our extensive experience and multi-disciplinary skills, our team of design engineers develop and continuously deploy ETSI standard and customised solutions to the global PMR market. Our technology has already been installed in more than a hundred professional analogue and digital radio systems worldwide, thus emphasising our capabilities in supplying the best solution in a wide number of applications. We specialise in ETSI DMR Tier II, Tier III trunking as well as analogue and DMR simulcast systems. Radio Activity is part of JVCKENWOOD Corporation.

Discover the functionalities of our newest generation of soft radio, based on Linux O.S. A world of features in a smart size: automatic multi-mode analog/DMR/POCSAG, SIP/RTP interface, soft antenna diversity reception, 1+1 assembly, WEB server support, remote control, and much more. We are happy to assist you during your system’s installation and set-up.

KAIROS’ sophisticated software and hardware platforms
make it a powerful embedded workstation. It is based
on a LINUX core which, thanks to the continuous
development from thousands of users around the world,
naturally interfaces IP devices and networks and easily
allows a high level of customization, without heavily
impacting development efforts.

“Kairos” is an ancient Greek word meaning the right moment in which everything happens. Perfect timing is the
secret of Radio Activity digital simulcast technology. Years of research and field experience enabled us to fix the
right moment in the core of our KAIROS series of radio base stations.

Our modular base stations/repeaters are largely used in many simulcast realizations all over the world. The basic model already features analogic and digital services. It can be equipped with a dual receiver to counteract fading effects through diversity space reception.